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3799 Main St. #87024
Atlanta, GA 30337
USA

773.398.5288

Advanced residential construction and home improvement consulting and owner's advocacy in Atlanta, using the latest building performance diagnostic and modeling techniques and tools. Airtightness, insulation, HVAC, ventilation, moisture, and air quality and EMF consulting for homeowners and building professionals alike.

Videos/Podcasts/Articles

Home performance articles and stories from the field with internationally respected building forensics guru Corbett Lunsford at the Building Performance Workshop. Hear new episodes of the Building Performance Podcast, see new videos from the Home Performance YouTube channel, and learn all about how diagnostic testing (more than an 'Energy Audit') can make home improvement and new home construction a proven process!

Filtering by Tag: test

Retrofit Series Continued: Addition and Progress Test

Corbett Lunsford

Corbett shows the (slow) progress on the 1960's performance retrofit with the install and testing of the addition. Featuring ZIP System paneling.

See the other videos in this series here:
https://youtu.be/iciAPohuLNM
https://youtu.be/YDXk8ObHBWU

Geotechnical Engineering for Foundation Footings: Dirt Performance and 4-in-1 Form-A-Drain

Corbett Lunsford

Corbett hired Geoff Hebner of Padstone Geotechnical Engineering to ensure the house being built will stand for a hundred years or more.

In part 2, Corbett shows the grading and leveling process with 6-8" lifts and 4x compaction using a remote-controlled trench roller.

In Part 3, Geoff returns to run a simple geotechnical test on the compacted dirt before pouring concrete, and Corbett finds out he's not as slick as he hopes.

FINALLY, we get to pour the concrete once the footings are finished with rebar, and well-supported per Geoff’s geotech engineering specs.

Learn more about this build at: https://homediagnosis.tv/atlanta-homestead/

What We Know About HOMEChem

Corbett Lunsford

If you only learn one video's worth of HOMEChem, this is the one to watch. Hear principal investigators Delphine Farmer and Marina Vance, joined by Lea Hildebrandt Ruiz and Richard Corsi and the rest of the HOMEChem researchers, describe the complexity they uncovered in this seminal study.

More at: http://HomeDiagnosis.tv/homechem

OZONE: the Original Villain of Indoor Chemistry

Corbett Lunsford

Indoor Air Quality is being explored at breakneck speed with the HOMEChem Experiment, and not surprisingly, ozone (O3) is proving to be the original villain in the complex system of interactions that make the air we breathe much more worrisome than anyone guessed. Featuring HOMEChem scientists Marina Vance, Delphine Farmer, Charlie Weschler, and Richard Corsi.

More at: http://HomeDiagnosis.tv/homechem

IAQ Sensors: Human Nose vs. Mass Spectrometer

Corbett Lunsford

Charlie Weschler sits down with Grace and Corbett and gives fascinating examples of the complexity of indoor air chemistry. He is an air quality legend, a professor on 3 continents, and one of the nicest guys you'll ever meet. More at: http://HomeDiagnosis.tv/homechem

HOMEChem Daily Vlog Series

Corbett Lunsford

Corbett and Grace report from HOMEChem in Austin during the open house extravaganza.

Grace and Corbett report from the frontier of indoor air quality, HOMEChem (House Observations of Microbial and Environmental Chemistry). This is their crash course in the instruments that were assembled for this experiment, and the experience of having those millions of dollars of chemistry instruments take a long, hard smell of your offgassing.

Grace and Corbett tour the Center for Energy and Environmental Resources with THE TRAVELER of HOMEChem, Lea Hildebrandt-Ruiz. She shows off her atmospheric chemistry laboratory at the University of Texas at Austin, where she's been testing the harmful effects of pollution on tiny pieces of people!

Corbett freaked out about particles from mosquito repellant and spray sunscreen, especially for his 3-month old little girl. Luckily, he has two of the world's top indoor chemistry experts to advise him and Grace.

Welcome to HOMEChem's last Festivity-Associated Kitchen Emissions Study (FAKESgiving) complete with turkey, stuffing, and cranberry sauce cooked like you'd drive a submarine. As House Observations of Microbial and Environmental Chemistry wraps up, we're digging deeper and deeper into how our cooking, cleaning, and hanging out habits affect the air we breathe in homes.

Body Splash or Body Sprays- these teen-loving products carry more than what is listed on the bottle. What is lingering afterwards and what is the chemistry looking like as the school day ends?

Grace and Corbett brain dump on the last day of HOMEChem, as researchers swab the Test House's surfaces for microbe samples.

Review: EasyHood HVAC Diagnostic Tool $400

Corbett Lunsford

Corbett likes tools that are sexy and scary at the same time. This flow hood is both. Measure CFM, Drybulb, Wetbulb, Dewpoint, Velocity, and more with this very affordable tool that will help revolutionize the HVAC industry.

Proving the Airtightness and Insulation of the #TinyLab

Corbett Lunsford

Join building diagnostics guru Corbett Lunsford as he tests the airtightness and insulation of the #TinyLab, the highest performance tiny house on wheels in the world. Using a Retrotec 5000 blower door, DM-32 smart gauge, and ThermApp infrared camera, he proves that the #TinyLab is truly a work of science and art at the same time.

Static Pressure Testing Demonstration Galore!

Corbett Lunsford

Watch building forensics expert Corbett Lunsford demonstrate Total External Static Pressure testing and pressure drop testing for a residential furnace and air conditioner.  Learn to diagnose pressure problems in supply and return ductwork, filters, evaporator coils, and duct sections in just a few minutes with a minimum of testing tools!

Tiny House Blower Door Test: #TinyLab Test Series #1

Corbett Lunsford

Watch as Corbett and Grace test their airsealing work on the Tiny Lab with a Retrotec blower door! They fire up the new Model 5000 fan and find that the house has approximately 160 CFM@50 of air leakage, which is 4.7 ACH50 and 0.14 CFM per sq. ft. of enclosure surface area- and that's with stupid tarps over the window holes! We're going to test again when the windows are in.

Thanks to Julie Tolliver of Energy Fitness for Homes for the idea, to Retrotec for making awesome equipment, to 475 High Performance Building Supply for supplying America with awesome airsealing kits, and to Hewlett-Packard for creating awesome video editing stations that we work on every day.